The scientific study of the composition, structure, properties, and reactions of matter.
CHEMISTRY
What is the smallest unit of an element that retains the properties of that element?
ATOM
What element, with an atomic number of 6 and an atomic mass of approximately 12.011, is the basis of organic chemistry and is found in all living organisms?
CARBON
Helium, Argon, Titanium
I'm a halogen, a disinfectant in pools, but also a poisonous gas in World War I. What am I?
Chlorine
The ability of a substance (solute) to dissolve in a solvent to form a homogeneous mixture (solution), typically expressed in grams of solute per 100 grams of solvent at a given temperature.
SOLUBILITY
What is the term for the total number of protons and neutrons in the nucleus of an atom?
ATOMIC MASS
What element, with an atomic number of 26 and an atomic mass of approximately 55.845, is a transition metal and is essential for the production of steel?
IRON
Potassium, Tungsten, Iodine
KIWI
I'm a reactive non-metal, used in fertilizers, found in explosives like TNT. What am I?
Nitrogen
a variant of an element that has the same number of protons (and therefore the same atomic number) as other atoms of the element, but a different number of neutrons in its nucleus
ISOTOPE
What is the name of the phenomenon where an electron transitions to a lower energy state within an atom, emitting a photon of light?
PHOTON EMISSION
What is the name of the element with an atomic number of 56 and an atomic mass of approximately 137.327, found in bones and teeth and used in nuclear reactors as a neutron absorber?
Iron, Sulfur, Titanium, Vanadium, Aluminum
FESTIVAL
I'm essential for life, found in every cell, without me, you couldn't breathe. What am I?
Oxygen
The temperature at which the vapor pressure of a liquid equals the atmospheric pressure, causing the liquid to change into a gas phase.
BOILING POINT
Who proposed the modern atomic theory in the early 19th century, which included the ideas of atoms being indivisible and atoms of different elements having different masses?
JOHN DALTON
Which element, with an atomic number of 3 and an atomic mass of approximately 6.941, is a light, silvery metal that is highly reactive and it is used as a psychiatric treatment for depression?
Lithium
Iodine, Radon, Oxygen, Nitrogen, Manganese
IRON MAN
I'm a metal used in dental fillings. What am I?
Hg
The process in which a substance transitions directly from the solid phase to the gas phase without passing through the liquid phase.
SUBLIMATION
Which subatomic particle is responsible for the majority of an atom's mass?
NEUTRONS
What element, with an atomic mass of approximately 65.38, is a transition metal used in galvanizing iron and making brass?
Lutetium, Nitrogen, Carbon, Hydrogen, Boron, Oxygen
LUNCHBOX
I'm an alkaline earth metal, used in fireworks, I give a bright white light when burned. What am I?
Magnesium